DR. JEFFERSON WILLIAM CHEN (MD PHD) – Neurological Surgery Physician, NPI 1992789747
Neurological Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
119 NEUROSURGERY in OR
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Provider Addresses for DR. JEFFERSON WILLIAM CHEN (MD PHD)
Legacy Emanuel Medical Center, 501, North Graham Street, Albina, Eliot, Portland, Multnomah County, Oregon, 97227, United States
PACIFIC NEURSURGICAL PC #580
PORTLAND, OR 972271654
Phone: (503) 528-0704
Fax: (503) 528-0708
Type: Mailing
501 N Graham St
Pacific Neursurgical PC #580
Portland, OR 972271654
Phone: (503) 788-6721
Fax: (503) 788-6721
Type: Location
200 S MANCHESTER AVE STE 300
ORANGE, CA 928683219
Phone: (714) 456-2986
Type: Mailing
101 THE CITY DR S
ORANGE, CA 928683201
Phone: (714) 880-7812
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2014-07-09
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20140709000281 | I | Neurosurgery | CA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 134 | 80 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 66 | 49 | $0 |
| 62252 | Reprogramming of cerebrospinal fluid shunt | 48 | 31 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 40 | 31 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 32 | 22 | $0 |
Insurance plans in this area (ZIP 97227)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | CA | |
| N E U R O S U R G E R Y | CA | |
| Physician Assistant | CA | |
| Physician Assistant | CA | |
| N E U R O S U R G E R Y | CA | |
| N E U R O S U R G E R Y | CA | |
| N E U R O S U R G E R Y | CA | |
| N E U R O L O G Y | CA | |
| N E U R O S U R G E R Y | CA | |
| Physician Assistant | CA |
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